Media access control address keep-alive device and method for convergence port

Abstract

The invention discloses an MAC address keep-alive device and an MAC address keep-alive method for a convergence port. In an MAC address aging period, a subsystem which receives message sends MAC keep-alive message to a global convergence port MAC address management module; and the global convergence port MAC address management module sends the received MAC keep-alive message to all subsystems to keep the MAC address alive. The device and the method can keep the MAC address of the convergence port alive in the MAC address aging period, effectively avoid flooding of destination message on two-layer network equipment due to error deletion of the MAC address of the convergence port, and effectively save the occupancy rate of a network bandwidth.

Description

technical field [0001] The invention relates to a medium access control (MAC, MediaAccess Control) address keep-alive technology, in particular to a MAC address keep-alive device and method for an aggregation port in a distributed two-layer network device. Background technique [0002] The MAC address is an identifier for identifying a local area network (LAN, Local Area Network) node, and the MAC address is globally unique to a device such as a network card interface. The MAC address is 48 bits, represented by 12 hexadecimal numbers. The first 6 hexadecimal numbers are managed by the Institute of Electrical and Electronics Engineers (IEEE, Institute of Electrical and Electronics Engineers) and are used to identify the producer or manufacturer to form an Organizational Unique Identifier (OUI, Organizational Unique Identifier); the last 6 16 The base number includes the serial number of the network card, or the setting value of a specific hardware manufacturer. [0003] The...

AI Technical Summary

Problems solved by technology

[0008] In the prior art, the MAC address keep-alive principle of the physical port described above is not applicable to the aggregation port of the Layer 2 network device, because the aggregation port probably does not belong to any subsystem alone, and the member physical ports of an aggregation port often simultaneously Belonging to multiple subsystems, if the MAC address keep-alive is performed according to the subsystem to which the physical port belongs, unless there are member physical ports of this aggregation port on all subsystems, and all member physical ports can receive packets for keep-alive , otherwise, the corresponding MAC address on a certain subsystem cannot be kept alive, and the "false aging" message cannot be rejected by judging the subsystem to which the port belongs, just like a physical port handles "false aging".

In this way, the MAC table management module will delete the MAC address that does not need to be deleted; when the MAC address is deleted, the message with the MAC address as the destination address will be flooded on the layer 2 network device, thereby increasing the bandwidth occupation Rate

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